Remove myself as maintainer of `haskell` image.

library/haskell

@@ -1,6 +1,5 @@
-Maintainers: Peter Salvatore <[email protected]> (@psftw),
-             Herbert Valerio Riedel <[email protected]> (@hvr),
-             Alistair Burrowes <[email protected]> (@AlistairB)
+Maintainers: Alistair Burrowes <[email protected]> (@AlistairB),
+             Herbert Valerio Riedel <[email protected]> (@hvr)
 GitRepo: https://github.com/haskell/docker-haskell
 
 Tags: 9.0.1-buster, 9.0-buster, 9-buster, buster, 9.0.1, 9.0, 9, latest